Metal working – Means to assemble or disassemble – Valve applying or removing
Reexamination Certificate
2005-03-29
2005-03-29
Watson, Robert C. (Department: 3723)
Metal working
Means to assemble or disassemble
Valve applying or removing
Reexamination Certificate
active
06871390
ABSTRACT:
A spring detachment device includes two fixing seats, a transverse rod, and an operation mechanism. Thus, the spring detachment device can be operated by a single person only, thereby saving the manual work and the working time. In addition, the distance between the operation mechanism and the air door can be adjusted easily and conveniently, thereby facilitating the user replacing the spring.
REFERENCES:
patent: 3676913 (1972-07-01), Fagen
patent: 5463802 (1995-11-01), Vachoux
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